2008-07-02

Appointment of Vice President Operations

Wednesday, July 2, 2008, Guernsey, Channel Islands – Tethys Petroleum Limited (“Tethys” or the “Company”) (TSX:TPL) today announced the appointment of Mr Luka Chachibaia as Vice President Operations.

Mr Chachibaia is an experienced oil and gas engineer including some 11 years working for Schlumberger in various engineering and management positions. Starting as a field engineer with Dowell Schlumberger, Mr Chachibaia progressed to hold a variety of roles within Schlumberger including Operations Manager, Well Services for Northern Europe and Business Manager, Well Services in Libya. Mr Chachibaia’s specialisation is in oil and gas field operations management including well construction, completion and stimulation, and he has worked in many parts of the world including Kazakhstan, Turkmenistan, Azerbaijan, Georgia and Ukraine. Mr Chachibaia holds a Masters Diploma in Engineering Geophysics.

Dr David Robson, President and CEO of Tethys, commented, “We are delighted to have Luka onboard in this senior position responsible for our operations. Luka will be one of the key personnel involved in implementing our planned program in Kazakhstan and Tajikistan. His extensive hands-on operational experience in the field and his undoubted management skills will add to the Company’s already strong technical group which will enable the Company to meet its objectives.”

This press release contains “forward-looking information” which may include, but is not limited to, statements with respect to our operations. Such forward-looking statements reflect our current views with respect to future events and are subject to certain risks, uncertainties and assumptions, including, the risks and uncertainties outlined under the section titles “Risk Factors and Uncertainties” in our prospectus (available at www.sedar.com). Should one or more of these risks materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, believed, estimated or expected.

For further information please contact:

Sabin Rossi
Vice President Investor Relations
Tethys Petroleum Limited
TD Canada Trust Tower
161 Bay Street, 27th Floor
Toronto N5J 2S1
Canada

Office: 1-416-572-2065
Fax: 1-416-572-2201
e-mail: info@tethys.gg
website: www.tethyspetroleum.com

In Kazakhstan

Ardak Akanov
Managing Director
PG Communications
Almaty, Samal 2 Business Center Satty

Office phone/fax: 2 72 88 67, 2 72 82 37, 2 72 77 45
Cell: +77017115604
Email: development@pressclub.kz